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P. H. MGGRATH. BOTTLE G'LOSURB.

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PATRICK H. MCGRATH, OF RANDOLPH, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO MICHAEL F. CUNNINGHAM, OF SAME PLACE.

BCTTLE-CLOSURE.

SPECIFICATION forminglpart of Letters Patent No. 604,629, dated May 24, 1898..

Application tiled September 23, 1897. Serial No. 652,674. (No model.)

To all whom it may concern.-

Beit known that LPATRICK H.MOGRATH, of Randolph, county of Norfolk, State of Massachusetts, have invented an Improvement in Bottle-Closures, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention is an improvement in bottleclosures, being particularly intended for use with an antirefilling-closure, the main object of my improvement being to simplify the construction of and provide a guard-piece at the mouth of the bottle to prevent tampering with the usual valve mechanism provided to control the flow from the bottle.

In my Patent No. 580,830 I have shown a valve mechanism having a guard beyond it to prevent access thereto; but in the practical construction and manufacture of the guard there shown certain difficulties have been encountered and accordingly I have invented the improved guard herein disclosed, having a construction to make it a commercial and practical success.

The details of construction and the elements of novelty thereof will be more fully understood from the following description, reference being had to the accompanying drawings, illustrative of a preferred embodiment of my invention.

In the drawings, Figure l is a central vertical section showing my invention in place in a bottle-neck. Fig. 2 is a top plan View thereof. Fig. 3 is a perspective view of the body portion of the closure or guard. Figs. 4t and 5 are perspective views, respectively, of one of the plugs and a retaining-pin. Figs. 6 and 7 are respectively a plan and an elevation of the guard proper or guard-ring. Fig. 8 is a projection in elevation of one of the sections of the guard-ring.

The bottle and its neck A may be of any shape desired, being herein shown as approximately the same as shown in my patent before mentioned.

Vithin the neck A, and preferably resting on a ledge c thereof above a channel c, is the guard B, 4which constitutes my present invention. This guard is herein shown as having a main part or body b, undercut at b', adjacent a shoulder b2, and provided with a depending stem b3, terminating in a disk or head b4. lA flange b5 rests on the ledge a to maintain the guard in place. Perforations o6, preferably conical, extend from the undercut b through the body at its periphery (see Figs. l and 2) for the free iiow of the liquid from the bottle, and certain of these openings h6 have side apertures o7 to receive retainingpins c, Fig. 5. The pins c are adapted to enter the channel a', being held therein by plugs d, Fig. 1, shaped to fit tightly in the perforations h6 behind the pins c.

The lower or stem pcrtion of the body carries the guard proper, the latter being herein shown in the form of a ring bs, made in several overlapping sections, three being shown, (marked b9 Z910 b, respectively,) each section being wedge-shaped at one end and having a similarly-shaped recess at its opposite end, so that the sections interlock when assembled, as shown in Figs. 6 and 7. A tortuous outflow passage is formed by a longitudinal groove Z912 and oblique grooves Z113 Z314 in each section, the latter grooves extending in opposite directions from the intermediate groove (912 and being out of line with each other, so

that a zigzag passage is formed thereby making it impossible to enter from the outside of the bottle with a wire or other exploring implement.

All the parts mentioned are preferably made of glass and may be cast in the forms described at very little cost.

When a bottle has been filled, a valve mechanism-such, for instance, as that shown in my patent already mentioned-is inserted in the lower end of the bottle-neck, and then the guard B is inserted in the upper end of the neck. Before inserting the guard, however, the sections of the ring bs are assembled about the stem b3, a cushioning substance Z915, such as cork, being interposed, as shown in Fig. l, and then the guard is inserted in the neck A, the cushion 1915 permitting the guard-ring bs to contract when necessary to pass inwardly into place and also causing it to expand if required to iit against the neck. This feature is of great advantage, as it renders acc-ess to IOO the valve mechanism absolutely impossible. The guard having been inserted until its flange h5 rests on the ledge a., the pins c are poked outwardly into the channel a', and a plug d is dropped behind each pin and gently driven down snugly into the tapered perforation b5, as clearly shown in Fig. l, the plug terminating short of the top of the perforation, thereby rendering it impossible to remove the guard.

In practice it is found that the plugs are irremovable when driven in as stated, but they may also be cemented in place, if desired. y

The liquid iiows freely from the bottle through the tortuous passages Z914 b12 Z913 into the opening or chamber at the undercut portion b, and thence through the perforations be out of the bottle.

It will be understood that various changes in details and combinations thereof may be made without departing from the spirit and scope of my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a bottle-neck, provided with an internal channel, of a guard having perforations therethrough,one or more of said perforations having transverse apertures therefrom, a pin movable in each of said apertures adapted to be projected into said channel, said perforations being conical with the larger end outermost, and a correspondingly conical plug adapted to be inserted in the perforation behind said pin and hold the latter against removal from said channel, said plug terminating within the perforation short of the upper end thereof, substantially as described.

2. The combination with abottle-neck, provided with an internal channel, of a guard having a perforation in the shape of an inverted cone extending from its outer end, a transverse aperture from said perforation through the wall of the guard in alinement with said channel, a pin movable in said aperture, and a rigid plug of the same shape as the perforation and slightly less in diameter at its larger end than the outer end of the perforation, whereby when the plug is driven in the perforation behind the pin, the latter is held in said channel and the plug terminates short of the top and is thereby inaccessible, substantially as described.

3. In a nonsrefillable bottle, a guard, means to secure it in the neck of the bottle, and a contractible ring carried at the lower end of the guard, said ring being made up of rigid sections movably secured together and provided with tortuous passages across it for the How of the liquid, substantially as described.

Il. In a non-refillable bottle, a guard, means to secure it in the neck of the bottle, and a contractible ring carried at the lower end of the guard, said ring being made up of rigid sections interlocked with each other and each provided with tortuous passages across it, for the flow of the liquid, substantially as described.

5. In a non-refillable bottle, a guard, means to secure it in the neck of the bottle, and a contractible ring carried at the lower end of the guard, said ring being made up of rigid sections movably secured together and provided with tortuous passages across it, and means normally maintaining said ring eX- tended, substantially as described.`

6. In a non-refillable bottle,a guard secured in the bottle-neck, said guard comprising a body having a stem at its lower end and outlet-perforations through its upper end, and a sectional ring secured to said stem, the sections thereof being overlapped and having tortuous passages for the escape of the liquid to said outlet-perforations, substantially as described.

7. In anon-reflllable bottle, a guard secured in the bottle-neck, said guard comprising a body having a stem at its lower end and outlet-perforations through its upper end, and a sectional ring secured to said stem, the sections thereof being overlapped and having tortuous passages for the escape of the liquid to said outlet-perforations, a chamber being formed between the latter and said ring, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PATRICK II. MGGRATH.

Witnesses:

JOHN C. EDWARDS, EDITH M. STODDARD. 

